aboutsummaryrefslogblamecommitdiffstats
path: root/src/PlaylistPrint.cxx
blob: 01c3fc3b122cede9d0629e659a918cc05d685333 (plain) (tree)
1
2
3
4
5
6
7
8
9
10
11
12
13
  
                                                          










                                                                       



                                                                          

   
                   
                            
                           

                           
                       
                               
                             
                         
                             
                        

                             
                     
                          
                   
                        
                         
                          
 
    
                                                             
 
                                            
 
                                                              


    
                                                             

                                                 
                                            
 
                                    
                                              
                                        









                                                        
                                                           

                              

                     
                                                   







                                                                             
                                                                
 
                                                             


                                 
                                                




                                                                 
                                                             
                                             
 
                                                   


    

                                                     

                                             
                                                                  


    

                                                         

                                                 
                                                                      

 
           
                                                      
 
                                                        


                             
                                                          


                             
                                       



                             
    
                                                             
                       
 

                                                                           
                             
 
                                               
                                                                           

                                                               

         
                    
 

           
                                                        
                                                       
 


                                                   
 
                   
                                                  

                                                                            
                                    


                                 
                                                       
                    
                                                      
 
                             
         


    
                                                                 
 

                    
 
                                
                                                                            
                                

                             

                                                                
 
                          
                            
 

                    
/*
 * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include "config.h"
#include "PlaylistPrint.hxx"
#include "PlaylistFile.hxx"
#include "PlaylistAny.hxx"
#include "PlaylistSong.hxx"
#include "Playlist.hxx"
#include "PlaylistRegistry.hxx"
#include "PlaylistPlugin.hxx"
#include "QueuePrint.hxx"
#include "SongEnumerator.hxx"
#include "SongPrint.hxx"
#include "DatabaseGlue.hxx"
#include "DatabasePlugin.hxx"
#include "Client.hxx"
#include "InputStream.hxx"
#include "Song.hxx"
#include "fs/Traits.hxx"
#include "util/Error.hxx"
#include "thread/Cond.hxx"

void
playlist_print_uris(Client &client, const playlist &playlist)
{
	const queue &queue = playlist.queue;

	queue_print_uris(client, queue, 0, queue.GetLength());
}

bool
playlist_print_info(Client &client, const playlist &playlist,
		    unsigned start, unsigned end)
{
	const queue &queue = playlist.queue;

	if (end > queue.GetLength())
		/* correct the "end" offset */
		end = queue.GetLength();

	if (start > end)
		/* an invalid "start" offset is fatal */
		return false;

	queue_print_info(client, queue, start, end);
	return true;
}

bool
playlist_print_id(Client &client, const playlist &playlist,
		  unsigned id)
{
	int position;

	position = playlist.queue.IdToPosition(id);
	if (position < 0)
		/* no such song */
		return false;

	return playlist_print_info(client, playlist, position, position + 1);
}

bool
playlist_print_current(Client &client, const playlist &playlist)
{
	int current_position = playlist.GetCurrentPosition();
	if (current_position < 0)
		return false;

	queue_print_info(client, playlist.queue,
			 current_position, current_position + 1);
	return true;
}

void
playlist_print_find(Client &client, const playlist &playlist,
		    const SongFilter &filter)
{
	queue_find(client, playlist.queue, filter);
}

void
playlist_print_changes_info(Client &client,
			    const playlist &playlist,
			    uint32_t version)
{
	queue_print_changes_info(client, playlist.queue, version);
}

void
playlist_print_changes_position(Client &client,
				const playlist &playlist,
				uint32_t version)
{
	queue_print_changes_position(client, playlist.queue, version);
}

static bool
PrintSongDetails(Client &client, const char *uri_utf8)
{
	const Database *db = GetDatabase(IgnoreError());
	if (db == nullptr)
		return false;

	Song *song = db->GetSong(uri_utf8, IgnoreError());
	if (song == nullptr)
		return false;

	song_print_info(client, *song);
	db->ReturnSong(song);
	return true;
}

bool
spl_print(Client &client, const char *name_utf8, bool detail,
	  Error &error)
{
	PlaylistFileContents contents = LoadPlaylistFile(name_utf8, error);
	if (contents.empty() && error.IsDefined())
		return false;

	for (const auto &uri_utf8 : contents) {
		if (!detail || !PrintSongDetails(client, uri_utf8.c_str()))
			client_printf(client, SONG_FILE "%s\n",
				      uri_utf8.c_str());
	}

	return true;
}

static void
playlist_provider_print(Client &client, const char *uri,
			SongEnumerator &e, bool detail)
{
	const std::string base_uri = uri != nullptr
		? PathTraits::GetParentUTF8(uri)
		: std::string(".");

	Song *song;
	while ((song = e.NextSong()) != nullptr) {
		song = playlist_check_translate_song(song, base_uri.c_str(),
						     false);
		if (song == nullptr)
			continue;

		if (detail)
			song_print_info(client, *song);
		else
			song_print_uri(client, *song);

		song->Free();
	}
}

bool
playlist_file_print(Client &client, const char *uri, bool detail)
{
	Mutex mutex;
	Cond cond;

	struct input_stream *is;
	SongEnumerator *playlist = playlist_open_any(uri, mutex, cond, &is);
	if (playlist == nullptr)
		return false;

	playlist_provider_print(client, uri, *playlist, detail);
	delete playlist;

	if (is != nullptr)
		is->Close();

	return true;
}